For many species, even some humans, cockroaches are also a sought-after snack. ... The banana cockroaches (Panchlora) have opted for a simple camouflage approach: they are green and this helps them to blend in. Cockroaches of the Perisphaerus genus can roll up into an armadillo-like defensive ball
Explanation:
The exoskeleton will start to harden and regain normal coloration over the next few minutes, and life will soon return to normal for the temporarily white cockroach. Some species of roaches may take several hours to fully transform
